U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

ESQD Formula - K Factor

For HC/D 1.1 mass detonating material, the blast effect is the primary hazard. Most distances required to protect structures from the effects of a shockwave/overpressure are based on the formula:   D = KW1/3 https://www.milsuite.mil/book/docs/DOC-933725   DA Pam 385-64, Table 8-1, Safe Separation Distances and Expected Severities (HC/D 1.1) Often times, the numerical K-factor is used interchangeably with the type of distance or level of protection it prescribes. In this document is a list of permissible exposures stated in terms of psi, along with the corresponding K-factor and type of distance.   xxx

DAU Sponsored
ESQD Formula - K Factor
Document Type